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991.
Po‐I Lee Steve Lien‐Chung Hsu Jung Feng Lee Hung‐Yi Chuang Piyun Lin 《Journal of polymer science. Part A, Polymer chemistry》2011,49(3):662-670
A series of new low‐band gap copolymers based on dioctyloxybenzo[1,2‐b;3,4‐b′] dithiophene and bis(2‐thienyl)‐2,3‐diphenylbenzo[g]quinoxaline monomers have been synthesized via a Stille reaction. The effect of different functional groups attached to bis(2‐thienyl)‐2,3‐diphenylbenzo[g]quinoxaline was investigated and compared with their optical, electrochemical, hole mobility, and photovoltaic properties. Polymer solar cell (PSC) devices of the copolymers were fabricated with a configuration of ITO/ PEDOT: PSS/copolymers: PCBM (1:4 wt ratio)/Ca/Al. The best performance of the PSC device was obtained by using PbttpmobQ as the active layer. A power conversion efficiency of 1.42% with an open‐circuit voltage of 0.8 V, a short‐circuit current (JSC) of 5.73 mA cm−2, and a fill factor of 30.9% was achieved under the illumination of AM 1.5, 100 mW cm−2. © 2010 Wiley Periodicals, Inc. J Polym Sci Part A: Polym Chem, 2011 相似文献
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Nevena Milčić Dr. Višnja Stepanić Dr. Ivo Crnolatac Prof. Zvjezdana Findrik Blažević Dr. Zlatko Brkljača Dr. Maja Majerić Elenkov 《Chemistry (Weinheim an der Bergstrasse, Germany)》2022,28(56):e202201923
Although the application of organic solvents in biocatalysis is well explored, in-depth understanding of the interactions of solvent with proteins, in particular oligomeric ones, is still scant. Understanding these interactions is essential in tailoring enzymes for industrially relevant catalysis in nonaqueous media. In our study, the homotetrameric enzyme halohydrin dehalogenase (HHDH) from Agrobacterium radiobacter AD1 (HheC) was investigated, as a model system, in DMSO/water solvent mixtures. DMSO, the most commonly used co-solvent for biocatalytic transformations, was found to act as a mixed-type inhibitor with a prevalent competitive contribution. Even 5 % (v/v) DMSO inhibits the activity of HheC by half. Molecular dynamics (MD) simulations showed that DMSO keeps close to Ser-Tyr catalytic residues forming alternate H-bonds with them. Stability measurements paired with differential scanning calorimetry, dynamic light scattering methods and MD studies revealed that HheC maintains its structural integrity with as much as 30 % (v/v) DMSO. 相似文献
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T. S. Bulanova M. G. Zadneprianetc L. Ježková E. A. Kruglyakova E. V. Smirnova A. V. Boreyko 《Physics of Particles and Nuclei Letters》2018,15(1):121-126
The induction and repair of DNA double-strand breaks are studied using the immunohistochemical staining procedure of paraffin-embedded rat cerebellum tissues after exposure to γ-rays of 60Co. The dose dependence of radiation-induced colocalized γH2AX/53BP1 foci is studied and its linear character is established. It is shown that these foci are efficiently eliminated 24 h after irradiation. 相似文献
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Dr. Piotr Połczyński Dr. Rafał Jurczakowski Dr. Adam Grzelak Dr. Evgeny Goreshnik Dr. Zoran Mazej Prof. Wojciech Grochala 《Chemistry (Weinheim an der Bergstrasse, Germany)》2019,25(19):4927-4930
The use of the boron-doped diamond electrode as a sufficiently stable electrode for electrochemical measurements/synthesis in liquid anhydrous hydrogen fluoride medium is reported. Electrooxidation of silver(I) has been studied in this solvent by using classical transient electrochemical methods and impedance spectroscopy. It has been found that faradaic currents related to silver(I) oxidation and the fluorine evolution reaction are reasonably separated at the potential scale, which allows efficient electrosynthesis of AgIIF2, a powerful oxidizer. Impedance spectroscopy measurements provide insight into complex mechanism of AgF2 formation. The procedure for electrosynthesis is provided for the first time in both galvanostatic and potentiostatic condition. 相似文献
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Pajić Mila N. Krstajić Stevanović Sanja I. Radmilović Vuk V. Rogan Jelena R. Radmilović Velimir R. Gojković Snežana Lj. Jovanović Vladislava M. 《Journal of Solid State Electrochemistry》2016,20(12):3405-3414
Journal of Solid State Electrochemistry - Pt nanoparticles supported on Vulcan XC-72R were synthesized by water-in-oil microemulsion method. By incorporating different amounts of HCl as a capping... 相似文献
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